Below we list some external links, related to astronomy and astrophysics,
which appear interesting or relevant to us.
These external sites are neither maintained nor endorsed
by the Department of Theoretical Astrophysics (DTA).
DTAdeclines any responsibility for their contents and operation.

Atomic Data for Astrophysics:
Links to basic atomic data required for calculation
of the ionization state of astrophysical plasmas and for quantitative spectroscopy.
Most of these data are utilized in the photoionization code
Cloudy

Some astrophysics research groups and institutions
with close or related interests